More sidescan.....

A large shoal of large fish near Farnaght Point, above using sidescan, and below with conventional sonar.

A strange object near Cornamona (below)

Cornamona object, and fish

Below is a sidescan mosaic of Lisloughrey harbour. You can clearly see the holes made by the mooring chains of the vessels on swinging moorings, one appears to have dragged a few meters. The cong water supply pipe is visible at the bottom of the image. You can also see the returns from the hulls of boats on moorings and alongside.